#include "../logs/nanlog.h"
#include <vector>
#include <thread>
#include <chrono>

void bench(const std::string logger_name, size_t thr_count, size_t msg_count, size_t msg_len)
{
    //1.获取日志器
    nanlog::Logger::ptr logger = nanlog::getLogger(logger_name);
    if(logger.get() == nullptr)
    {
        return;
    }
    std::cout << "测试日志：" << msg_count << "条，总大小" << (msg_count * msg_len) / 1024 << "KB\n";
    //2.组织指定长度的日志器
    std::string msg(msg_len - 1, 'A');//少一个字节，是为了给末尾添加换行
    //3.创建指定数量的线程
    std::vector<std::thread> threads;
    std::vector<double> cost_arry(thr_count);
    size_t msg_per_thr = msg_count / thr_count;//总日志数量/线程数量=每个线程需要输出的日志数量
    for(int i = 0;i < thr_count; i++)
    {
        threads.emplace_back([&,i](){
            //4.线程函数内部开始计时
            auto start = std::chrono::high_resolution_clock::now();
            //5.开始循环日志
            for(int j = 0; j < msg_per_thr; j++)
            {
                logger->fatal("%s",msg.c_str());
            }
            //6.线程函数内部结束计时
            auto end = std::chrono::high_resolution_clock::now();
            std::chrono::duration<double> cost = end-start;
            cost_arry[i] = cost.count();
            std::cout << "\t线程" << i << ": " << "\t输出日志数量:" << msg_per_thr << ",耗时:" << cost.count() << "s" << std::endl;
        });
    }
    for(int i=0;i<thr_count;i++)
    {
        threads[i].join();
    }
    //7.计算总耗时：在多线程中，每个线程都会耗费时间，但是线程是并发处理的，因此耗时最高的那个就是总时间
    double max_cost = cost_arry[0];
    for(int i=0;i<thr_count;i++)
    {
        max_cost = max_cost < cost_arry[i] ? cost_arry[i] : max_cost;
    }
    size_t msg_per_sec = msg_count / max_cost;
    size_t size_per_sec = (msg_count * msg_len) / (max_cost * 1024);
    //8.进行输出打印
    std::cout << "\t总耗时: " << max_cost << "s\n";
    std::cout << "\t每秒输出日志数量：" << msg_per_sec << "条\n";
    std::cout << "\t每秒输出日志大小：" << size_per_sec << "KB\n";

}

void sync_bench()
{
    std::unique_ptr<nanlog::LoggerBuilder> builder(new nanlog::GlobalLoggerBuilder());
    builder->buildLoggerName("sync_logger");//日志器名称
    builder->buildFormatter("%m%n");
    builder->buildLoggerType(nanlog::LoggerType::LOGGER_SYNC);
    builder->buildSink<nanlog::FileSink>("./logfile/sync.log");
    builder->build();

    bench("sync_logger", 3, 1000000, 100);

}

void async_bench()
{
    std::unique_ptr<nanlog::LoggerBuilder> builder(new nanlog::GlobalLoggerBuilder());
    builder->buildLoggerName("async_logger");//日志器名称
    builder->buildFormatter("%m%n");
    builder->buildLoggerType(nanlog::LoggerType::LOGGER_ASYNC);
    builder->buildEnableUnSafeAsync();//非安全模式--主要是为了将实际落地时间排除在外
    builder->buildSink<nanlog::FileSink>("./logfile/async.log");
    builder->build();

    bench("async_logger", 3, 2000000, 100);
}

int main()
{
    //sync_bench();
    async_bench();

    return 0;
}